// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "net/tools/gdig/file_net_log.h"

#include <stdio.h>

#include <memory>

#include "base/json/json_string_value_serializer.h"
#include "base/logging.h"
#include "base/values.h"

namespace net {

FileNetLogObserver::FileNetLogObserver(FILE* destination)
    : destination_(destination)
{
    DCHECK(destination != NULL);
}

FileNetLogObserver::~FileNetLogObserver()
{
}

void FileNetLogObserver::OnAddEntry(const net::NetLog::Entry& entry)
{
    // Only BoundNetLogs without a NetLog should have an invalid source.
    DCHECK(entry.source().IsValid());

    const char* source = NetLog::SourceTypeToString(entry.source().type);
    const char* type = NetLog::EventTypeToString(entry.type());

    std::unique_ptr<base::Value> param_value(entry.ParametersToValue());
    std::string params;
    if (param_value.get() != NULL) {
        JSONStringValueSerializer serializer(&params);
        bool ret = serializer.Serialize(*param_value);
        DCHECK(ret);
    }
    base::Time now = base::Time::NowFromSystemTime();
    base::AutoLock lock(lock_);
    if (first_event_time_.is_null()) {
        first_event_time_ = now;
    }
    base::TimeDelta elapsed_time = now - first_event_time_;
    fprintf(destination_, "%u\t%u\t%s\t%s\t%s\n",
        static_cast<unsigned>(elapsed_time.InMilliseconds()),
        entry.source().id, source, type, params.c_str());
}

} // namespace net
